diff --git a/pkgs/development/python-modules/ev3dev2/default.nix b/pkgs/development/python-modules/ev3dev2/default.nix
index 5afbb7da655f..dc4720e8f903 100644
--- a/pkgs/development/python-modules/ev3dev2/default.nix
+++ b/pkgs/development/python-modules/ev3dev2/default.nix
@@ -18,7 +18,7 @@ buildPythonPackage rec {
   };
 
   postPatch = ''
-    echo "${version}\n" > RELEASE-VERSION
+    echo "${version}" > RELEASE-VERSION
   '';
 
   propagatedBuildInputs = [ pillow ];